Hedenbergite
Redhammer G J, Amthauer G, Roth G, Tippelt G, Lottermoser W
American Mineralogist 91 (2006) 1271-1292
Single crystal X-ray diffraction and temperature dependent 57Fe Mossbauer
spectroscopy on the hedenbergite - aegirine (Ca,Na)(Fe2+,Fe3+)Si2O6 solid solution
Locality: synthetic
Sample: Ae504, T = 90 K
_database_code_amcsd 0004206
9.7266 8.8959 5.2691 90 106.067 90 C2/c
atom      x     y     z  occ  Uiso
Ca2       0 .3013   .25 .501 .0055
Na2       0 .3013   .25 .499 .0055
Fe2+1     0 .9031   .25 .501 .0030
Fe3+1     0 .9031   .25 .499 .0030
Si    .2889 .0912 .2340      .0020
O1    .1158 .0836 .1445      .0058
O2    .3598 .2525 .3139      .0057
O3    .3512 .0147 .0026      .0045